Production systems I worked on, and my part in them

A retail POS system has to follow the fiscal rules of every country it is sold in, and each country has its own system and its own reporting rules. I add those countries to a retail software platform, across two product companies and two Scrum teams.

Fiscal integrations for several countries are part of the platform.

A B2B marketplace for waste logistics had grown over time and was getting slow to change. The platform needed a clearer structure, a team that knew who owned what, and a release process that took less effort.

Active preparation and execution time for each release went down by 40%.

A company with several software products needs one consistent way to manage licenses across all of them. I work on that for my current employer.

I designed and built a centralized licensing system for the company's software.

A retail technology company wanted electronic price tags that a shop could control from one central system. The prices had to change on their own, based on things like the weather and local events. The company needed an architecture for it, a working prototype and a team to build it.

A working prototype of the electronic price tag platform, with a backend and dynamic pricing logic.

A waste logistics company handled many receipts and wanted to take them into its systems without typing them in. The idea was a system that reads receipts on its own, using OCR and AI.

Tourism websites need a map that shows visitors the highlights of a region. I first needed one for a large regional tourism portal. The agency built many tourism sites, so a map made for one site would have had to be built again for every other.

The map became part of every tourism site the agency built.

A German region wanted a tourism portal that could show its highlights to visitors and that its own staff could update. The site also needed subsites for the different parts of the region. It had to run for years and keep growing.

The portal served thousands of visitors.

A video technology company needed a marketing landing page that its own team could edit without a developer. The page had to load fast and be easy to change. The company also needed one developer who knew the project and could talk to them directly.

I delivered the landing page and connected it to the client's CMS.

A young cleantech company wanted to offer software for managing energy communities and shared renewable energy systems. It needed a first working version to show that the idea worked and to start building the product on.

The client got a working prototype of its platform for energy communities and shared renewable energy systems.

A young company in car performance tuning needed a way to give its customers and partners chip specification data. There were several kinds of data, and each kind needed its own page. The company was small and had no developer, so it needed one person to build the whole thing and keep it running.

I delivered 7 to 8 data portals from a single codebase.

A print business wanted customers to upload their own designs and order prints online. Before this, orders took a lot of manual work between the order and the printing press. The business needed a system that handled an order from the first click to the shipping.

The process from order to shipping became automated.

A web agency wanted to build a product for physical stores. The idea was to find out how customers move through a shop and what they do there, in the same way a website shows how visitors behave online. Nobody had built this before in the company, so it started with a prototype that had to prove the idea.

A working prototype of a customer tracking system for physical stores.

A car brand wanted to promote new models online whenever something new came out. Each campaign needed its own site that looked good, loaded fast and got people to take part. The sites also had to collect visitor details, with their consent, so the brand could follow up.

I delivered a series of campaign sites for new car launches.

The biggest radio station in the country wanted a new website with a CMS that its own staff could run. It had to support campaigns, polls and other features, and each of them had to be easy to change. Most of all, people had to be able to listen to the live stream and browse the site at the same time, without the sound ever stopping.

The station got a CMS made for its needs, with a website that never interrupted the stream.

A university research laboratory ran a simulation that predicted how a forest grows. The simulation was so slow that one run took weeks. That made it hard to test ideas and to get results in time. The lab needed it to run much faster.

The run time of a simulation went down from weeks to days.

A university laboratory graded practical work from many students. Copied work is hard to spot by hand and it makes grading unfair. The lab needed a way to check submissions so its grades could be trusted.

The lab got a working plagiarism check for practical work.